Permittivities of the E-Glass Fabric/Epoxy Composite Laminates Containing Carbon Black Dispersion

카본 블렉을 함유한 유리섬유 직조 복합재 적층판의 유전율

This paper presents a study on the permittivities of the E-glass fabric/epoxy composite laminates containing carbon black dispersions at microwave frequency. Measurement showed that the complex permittivities of the composites depend strongly on the natures and concentrations of the carbon black dispersion. A new scheme to obtain a mixing law for the estimation of complex permittivity is proposed. The experimental values of the complex permittivities were compared to those calculated. Simultaneously, the complex permittivity of carbon black itself was also calculated by the scheme.